Pith Number

pith:HBLQ4AA2

pith:2010:HBLQ4AA2TR4C4KSO6LGYPJ53MG

not attested not anchored not stored refs pending

Stratification of the elements in the atmospheres of blue horizontal-branch stars

A. Hui-Bon-Hoa, F. LeBlanc, V.R. Khalack

arxiv:1007.4023 v1 · 2010-07-22 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HBLQ4AA2TR4C4KSO6LGYPJ53MG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:06:11.319306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38570e001a9c782e2a4ef2cd87a7bb61a85547346d1c448649a4a5ce7b663142

Aliases

arxiv: 1007.4023 · arxiv_version: 1007.4023v1 · doi: 10.48550/arxiv.1007.4023 · pith_short_12: HBLQ4AA2TR4C · pith_short_16: HBLQ4AA2TR4C4KSO · pith_short_8: HBLQ4AA2

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HBLQ4AA2TR4C4KSO6LGYPJ53MG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 38570e001a9c782e2a4ef2cd87a7bb61a85547346d1c448649a4a5ce7b663142

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf578acf5b91a62bc720228b8d8cdcc07a735174e8a647f80efcd05a0c435235",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-07-22T23:09:03Z",
    "title_canon_sha256": "00042cf71d32a14962b6fd485a886fe919f90b29fddce7bf23342d9d3380dd22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.4023",
    "kind": "arxiv",
    "version": 1
  }
}